On the Natural and Mathematical Laws Concerning Population, Vitality, and Mortality. with Tables of Mortality and Other Tables

On the Natural and Mathematical Laws Concerning Population, Vitality, and Mortality. with Tables of Mortality and Other Tables

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1833 edition. Excerpt: ...having their alternate maxima and minima, both in that second and in the third order of differences; and the small portion of discretionary latitude which we have admitted, being incessantly controlled by the series of facts actually observed, must remain exempt from objection; unless a permanent character were unduly attributed to those fortuitous results of experience, notwithstanding their discrepancies and the irregularities of their mutual connexion. Hence an absolute conformity is to be sought only in the general and periodic results; whereas regularity of progression is at all times an essential requisite, ilnder the view of an useful and generalized application of the Law cf Mortality. All results thus obtained, are certainly nothing else than systematic approximations; but in things of this nature, where positive data are--and ever must be--partly wanting, no one could possibly Hatter himself with obtaining nearer approaches to absolute certainty. i5G. The anomaly described in our preceding chapter, as attaching to the seventh period, docs not prevent its interpolated cruantities being determined by, the method employed for all other periods; always carefully and gradually operating, in each of the elementary series thai resolve into an ultimate series qx, the transitions to and from that period. Regarding the eighth and last period, rather more obnoxious than any other to arbitrary determinations; and in order that the law of mortality may, with all possible correctness, exhibit the phenomena especially belonging to longevity, al its variously advanced stages, the following method of proceeding, to determine the remaining part of the series of Specihc intensities, has appeared best to answer the desired purpose. 157. Whatever...show more

Product details

  • Paperback | 58 pages
  • 189 x 246 x 3mm | 122g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236749294
  • 9781236749291